"If we condensed EarthâEUR(TM)s 4.6-billion year history into one calendar year, humans evolved in the very last hour of December 31 âEUR" and the Industrial Revolution and modern age occurred the last two seconds of that year." ? ENJOY one perspective

The study authors said: "Scientists have been reluctant to attribute empathy to animals, often assuming selfish motives. These explanations have never worked well for consolation behavior, however, which is why this study is so important."

A new plane powered solely by biofuels and solar energy is about to make the first zero-carbon-emission flight across the Atlantic Ocean. The 'Eraole' has been developed by French pilot, scientist, and entrepreneur, RaphaÃ«l Dinelli and will fly in June.